Rest for the arms of car-seat backs



(No M l.)

BEST FOR THE ARMS 0F CAR SEAT BACKS.

Patente'd'Ap-r. 28 1885.

I I i u UNITED STATES PATENT Onrrcn.

GE ORGE BUN'IIN, OF BOSTON, MASSACHUSETTS.

REST FOR THE ARMS OF CAR -SEAT BACKS.

SPECIFICATION forming part of Letters Patent No. 316,736, dated April 28, 1885.

Application filed October 13, 1884. (No model.)

To all whom it may concern:

Be it known that I, GEORGE BUN'IIN, a citizen of the United States, and a resident of Boston, Massachusetts, have invented certain Improvements in Rests for the Arms ofOar-Seat Backs,

- of which the following is a specification.

My invention consists of a device, fully described and claimed hereinafter, for supporting the arms of reversible backs of car-seats, the object of my invention being economy in the construction of the end frames of the seat and the ready replacing of the armrests when broken.

In the accompanying drawings,Figure 1 is a sectional perspective view of a car-seat, show ing the portion of the rests for the arms of the reversible back; Figs. 2 and 3, views show ing the ordinary way of making the seat; Fig. 4:, a vertical section, drawn to an enlarged scale, of part of one of the end frames of a carseat and my improved rest for the arms; Fig. 5, a perspective view of the rest without the retaining-plate, and Fig. 6 a perspective view of the retaining-plate.

In Fig. 1, Hrepresents part of one of the end frames of a car-seat, I the cushion, and J the reversible back, having the usual arms,K, one of which is pivoted at a to each end frame, and which is supported partly by thepivot and partly by rests on the frame.

Referring in thefirst instance to these rests as usually made, when the end frames are of cast-iron, Fig. 2 represents part of one of the frames, and B the rest cast thereon. This rest adds to the cost of producing thecasting, as the mold must be especially prepared with a core. Rests of this character, moreover, are

more or less precarious, for the upwardly-pro jecting retaining lips are not infrequently broken off, as shown in Fig. 3, in which case either a new casting must be made for the entire end frame, or considerable expense must be incurred in repairing the frame by putting a new rest thereon. In order to obviate these difliculties, I construct the rest in the manner shown in Figs. 4., 5, and 6.

Each end frame is preferably re-enforced in thickness by projections WV on the inner side, and on the lower end of each projection is a ledge, m, inclined on the top to accord with the inclination of the arm K. This ledge in forms a solid part of the end frame, and cannot be broken off by any jars which may occur when the back of the seat is reversed. The retaining-plate M (a separate casting from the end frame) nnderlaps the ledge m, is secured to the frame by a setscrew, t, and is carried up far enough to prevent the lateral displacement of the arm which rests on the ledge m. In order to steady the retainingplate, I prefer to cast a lug, n, of the shape shown, or of any other appropriate shape, on the under side of the ledge, a cavity, y, adapted to this lug, being found in the shoulder n of the retaining-plate. Should this plate be broken, it can be readily replaced by a new one at a nominal cost.

The springbolt T, which can be withdrawn by a key in charge of a conductor, is similar to that applied to ordinary carseats, and therefore need not be described.

I claim as my invention- The combination, with a carseat frame, of two arm-rests, each consisting of a ledge, m, cast on the frame, and a retaining-plate, M, detachabl y secured to the frame, as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

GEORGE BUN TIN.

Witnesses:

J OHN M. CLAYTON, HARRY SMITH. 

